Lantern-slide carrier.



C. E. SHAR'LOW. LANTERN SLIDE CARRIER.

APPLICATION FILED 00T. 6, 1913.

Patented Aug. 25, 1914 I Ik@ 4f. Ik?.

:l Il: lill!! l l Il Il Il i UNITED sTATEs PATENT oFEIcE.

CHARLES 11 sHARLoW, or UNION HILL, NEW JERSEY, AssIGNoR 'ro sHARLoWmtos.

' co., oF NEW YORK, N. Y. l

specmation @Lettersraamt Patented Aug 25, 1914 Application led ctober 6,1913. Serial No. 793,570.

T0 all whom it may concern:

Be it known that I, CHARLES E. SHARLOW, a citizen of the United States,and a resident of Union Hill, in the county of Hudson and State of NewJersey, have invented certain new and useful Improvements in Lantern-Slide Carriers, of which the-following is a specification.

The present invent-ion is an improvement upon the form of lantern slidecarrier disclosed in Letters Patent No. 945,619, issued to ThomasShar-low Jan. 4th, 1910, the distinctive feature of which patent is theformation of thearrier of a single piece of sheet metal folded overfillers of so called non-combustible fibrous material inserted andrigidly s'ecured'to and between the side Walls thus formed.

The main object of the present invention is to attain a light lweight,substantial,

` rigid, absolutelyfire proof slide carrier inade essentially of aslngle blank of sheet metal,-

the non-combustible fillers heretofore used as spacers being eliminated,and the spacing being attained by upsetting or embossing the sheet metalblank so as to form depressed panels which coincide and abut againsteach other back to back, when the blank is folded over upon itself, allas hereinafter fully described and claimed specifically. By dispensingwith the so-called non-combustible fibrous fillers of compressed fibrousmaterial I-render the carrier absolutely fire proof and at the sainetime cheapen, lighten and strengthen the structure as a whole, whileincreasing its rigidity and durability. Furthermore all the parts beingformed solely of continuous sheet metal the eXpansion and contraction isuniform throughout and the diffusion of,v heat is facilitated andrendered uniform, which is an important factor in lantern slide holders,whereas the non-conducting fibrous fillers tend to 'concen trate theheat around the edges of the slide and thus endanger its integrity.

In theJ accompanying drawings, Figure l, is a side elevation of myimproved slide carrier and its holder; Fig. 2, a top view thereof; Fig.3, a section taken upon plane of line 3-3 Fig. 1, scale full size; Fig.4, is an end elevation; Fig. 5, a transverse section upon plane of line5 5 Figs. l and 3; Fig. (5, a transverse section upon plane of line 6 6Figs. 1 and 3; Fig. 7, a transverse section upon plane of line 7 7 Figs.1 and il.

As in the patent hereinbefore referred to thecarrier C, is composed of ablank of sheet metal, preferably Russia lii'ron, bent over upon itselfto form the bottomc, and sides c', c', in which are the slide Viewopenings c, o. Obviously the side walls c', c', must be spaced apartsufficiently to accommodate the thickness of the lantern Slides to beused, and While the non-combustible fibrous fillers heretofore mentionedaccomplished this effectively, it was found by experience that undercertain conditions of use the fibrous fillers .charred and deteriorated,while the fillers, being non-conductive, tended to retard diffusion ofheat-and to concentrate it around the edges of the slides, to theirdetriment. I obviate these difliculties by forming the sheet metal blankwith end panels c2, c, and an intermediate panel c3, flanking the viewopenings c, fv,.

said panels consisting of depressions on one side of the metal platemade by stamping or embossing in such manner that when the blank isfolded over upon itself the coinciding countersunk portions Will abuteach other, back to back, as shown vparticularly in Figs. 5 and 7, theparts being secured in this relationship by rivets r, r, which unite thestructure integrally. By making the countersink or offset in each sidewall equal to one half the thickness of the slides to be accommodated,and thus evenly distribute the embossment in and between said sidewalls, I attain a stiff, rigid and substantial carrier of light Weight,and uniform heat conductivity throughout.

The end panels c2, are recessed transversely, as at c, c, for thereception of the metallic Shanks h, of the handles L, which are thussecured in position by the rivets 1, as shown more particularly in Fig.5. By reference to Fig. 3, it will be seen that the inner edges of thepanels c2, c3, constitute the end walls c5, c5, of the slidecompartments cx, cx, formed by said end Walls c, of, and the adjacentportions of the side walls o', c, in conjunction with the bottom orfloo-r c, formed by the bending of the blank,-the space between the.upper edges of the side walls c', c', being of course left open for thereception of the lantern slides.

The frame A is composed of four blanks of sheet metal, preferably Russiairon, like the carrier. The side members, a, a, consist of blanks formedwith the offsets l, 1,

lli)

of approximately one half the thickness of the carrier C, in crosssection, and with return flanges 2, 2, which when the blanks are opposedto each other with the Webs 3, 3, in contact, project outward, as willbe understood by reference to Figs. 4, 5, 6 and 7 these outwardlyprojecting flanges 2, 2, being capped by plates 4, 4, the edges of whichare bent over and finally pressed against the inner sides of the flanges2, 2, in such manner as to secure the parts rigidly together. Thecentral space created bythe offsets 1, 1, serves as t e channel for thecarrier C; ,and the side members a, a, are formed with the Viewapertures a', a', coinciding in size and shape with those (o) in thecarrier. The Width of the flanges 2, 2, and their caps 4, 4, isequivalent to the thickness of the old form of wooden slide carrierheretofore used yin conjunction with lanterns of this class, so that theframe A is adapted for use in lanterns of standard size and make.

The side members a, a, of the frame A, are formed with transverse beadsor corrugations a2, a2, near their edges to stiften the frame andpreserve its alinement With the carrier C, which is confined to theholder A by the handle shoulders h2, h2, as in said previous patent. Ithus attain barring the handles L, la) a complete metalllo structure ofboth frame A and carrier C, which is best adapted to disseminate heat,and calculated -to maintain its shape and integrity under all conditionsof use.

What I claim as my invention and desire to secure by Letters Patent is,

1. As an article of manufacture, a slide carrier formed of asingle'piece of sheet metal folded along tWo parallel lines toconstitute parallel side walls, said side Walls being formed withcoinciding View openings, the metal between the sides thus formedconstituting the bottom of the carrier, said side Walls being alsocountersunk in part to form spacing panels flanking the view openings,the coinciding countersunk portions in the opposite Walls abutting backto back and being rigidly secured together for the purpose described.

2. As an article of manufacture, a slide carrier formed of a singlepiece of sheet metal folded along two parallel lines to constituteparallel Side walls, said side Walls being formed with coinciding Viewopenings, the metal between the sides thus formed constituting thebottom of the carrier, said side walls being also countersunk in part toform spacing vpanels filanking the View openings, the coincidingcountersunk portions in the opposite Walls abutting back to back andbeing rigidly secured together, said flanking partitions being arrangedto cause the slides to register With said View openings substantially inthe manner set forth. i

CHARLES E. SHARLOV. Vitnesses:

GEO. WM. MIATT, DOROTHY L. MIATT.

